Which of the following statements are part of the cell theory? All cells contain DNA

All cells come from pre-existing cells

Cells are the basic unit of life

All cells are living

All organisms are made of cells

All Cells reproduce

The 2nd statement, 3rd statement and 5th statement.

Explanation:

According to the cell theory presented by Matthias Schleiden, Theodor Schwann and Rudolf Virchow.

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when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.